Jasmine's Steelix (Japanese: ミカンのハガネールMikan's Haganeil) are a group of Pokémon owned by Jasmine. She uses many different Steelix throughout the various Pokémon series.
Jasmine was first seen with a Steelix in Nerves of Steelix! where it rescued Ash's Pikachu after he had been kidnapped by Team Rocket. It easily managed to knock over their mecha after Brock and Janina's Onix had failed to do so. It then disabled the mecha with its powerful jaws, and once Pikachu was safely back in Ash's possession, sent Team Rocket flying with a powerful Iron Tail. This Steelix was used again later during the second round in her Gym match against Ash. It was put up against Ash's Pikachu, however the Mouse Pokémon was fatigued from his previous battle against Jasmine's Magnemite. Additionally his Electric-type moves had no effect on Steelix, a Ground-type, neither did his Quick Attack do much damage to Steelix's hard body. After a valiant effort, Pikachu was easily defeated by Steelix's Iron Tail.
Ash then sent out his Cyndaquil to battle against Steelix. Despite being at a type-disadvantage, Steelix managed to defend itself against Cyndaquil's Flamethrower through use of its Sandstorm and then disappeared from the field by burrowing underground. After resurfacing, its attempts to attack the Fire Mouse Pokémon failed as Cyndaquil easily managed to dodge them all. It then reused its Sandstorm and Dig combination to defend against another Flamethrower. After continuously failing to hit one another, Ash had Cyndaquil use SmokeScreen and use Steelix's holes to hide in. Once the smoke had been cleared, Cyndaquil managed to land a direct hit with Flamethrower from its hiding place. Jasmine then had her Steelix use Iron Tail on the ground, causing the tunnels below to cave in, forcing Cyndaquil out of the hole. After hitting Cyndaquil with Iron Tail, it looked like Steelix had won. However, Cyndaquil managed to recover and avoid being knocked out through use of Smokescreen. Steelix then used Sandstorm to defend against Flamethrower, however this tactic inevitably failed in the end as Steelix's Sandstorm was ignited, surrounding Steelix in a tornado of flames, knocking out the Iron Snake Pokémon earning Ash the Mineral Badge.
Jasmine's Steelix debuted in Capital Kabutops! wearing a layer of rock over its steel body, causing everyone to believe it was an Onix. It battled against Brock's Onix, and as the two constricted each other, Onix took damage due to Steelix's much harder body and Steelix's outer coating began to chip and fall off. Exposed as being a fraud, Steelix broke out of its disguise and revealed itself to be Steelix. It then easily took down Brock's Onix, and Jasmine explained that her Steelix also used to be an Onix until it evolved. After Professor Oak explained that Steelix has yet to be officially classified, Jasmine explained that because of its rarity, she hid Steelix's identity so it wouldn't be exploited.
A † shows that the move was used recently, unless all moves fit this case or there are fewer than five known moves.
In the Pokémon Gold and Silver: The Golden Boys manga
Jasmine's Steelix appears in A Spectacular Battle To Save Ampharos where during the battle between Gold's Pikachu and Black's Gyarados, Jasmine had it take Gold's place as she couldn't take waiting for Black to get defeated. However, since Gyarados was taken out by Steelix, they could not get to Cianwood City.
In the Pokémon Pocket Monsters manga
Jasmine's Steelix in Pokémon Pocket Monsters
Steelix appears in Tyrogue's in Love?! where Jasmine was able to meet up with Red once again.
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